Fastener member



May 11, 1943. c, HALL 2,318,853,

. FASTENER MEMBER Filed March 20, 1941 Patented May 11, 1943- FASTENEB MEMBER Charles L. Hall, Detroit, Mich asslgnor to United-Carr Fastener Corporation, Cambridge, Mass., a corporation of Massachusetts Application March 20, 1941, Serial No. 384,331

- 3 Claims. (Cl. 24-73) This invention relates toimprovements in detachable clip members of the type used to clamp pipes, wires and the like to a supporting frame and particularly to the fastening device by which the clip is secured to the frame.

The chief object of my invention is the provision of a clip member of simple and inexpensive manufacture adapted to be detachably assembled with a supporting panel from'the front side thereof and providing relatively short attaching portions which engage behind the rear face of the support through an aperture in a .way to take up a minimum amount of space on the last-mentioned side. Thus my improved fastening arrangement permits application of a clip member to supports which provide too little clearance on the rear side thereof to receive the relatively longer attaching portions common to fastener members of this type heretofore known in the art.

Other objects of my'invention will be apparent from inspection of the drawing and specification hereinbelow set forth.

Referring to the drawing, in which I have illustrated a preferred embodiment of my invention:

engaging portion of generally U shape providing .a pair of fingers 6 and I connected by a portion 8. The fingers 6 and I are yieldable relative to in the marginal limits thereof so as to leave a Fig. -1 is a top plan view of-a clip member embodying my invention secured to a supporting panel;

Fig. 2 is a side elevation of the installation shown in Fig. 1 and showing a conduit engaged by the clip member;

Fig. 3 is a rear view of the installation shown in Figs. 1 and 2 and illustrating by way of dottedlines the method by which the attaching portions of the clip member are turned into engagement with the supporting panel; I

Fig. 4 is a section taken along the line 4-4 of Fig. 3;

Fig. 5 is an end view of my improved clip mem! ber per se; and

with an elongated opening 3 having opposed lonitudlnal side walls 4 and transverse end walls 5. The clip member i is preferably formed from a single piece of spring metal and has a conduitpair of apertures I I in the base. Each of the attaching portions lllis in the form of a hook having a portion l2 adjacent its free end in spaced underlying relation to the base I and cooperating with the base to effect an engagement with opposed surfaces of the panel. The hook portions it! are disposed in opposite relation and open in opposite directions. The end portions I 2-l2 form an elongated end having a length which is less than the major axis of the aperture 3, but greater than the minor axis permitting the attaching portions to be moved freely through the aperture 3 when registered therewith and then turned to engage the panel on a line parallel to the minor axis of the aperture ina manner to be described. In order to provide a firm take-up, the end portions I! are inclined slightly at an angle relative to the general plane of the base 1 with the result that when the attaching portions are rotated, engagement of the inclined edges of the portions l2 with the rear surface l3, of the panel tends to draw the base tightly against the front surface l4 of the panel so as to effect a secure non-rattle attachment.

Assembly of the parts of my installation is a relatively simple matter and is carried out through first moving the end portions I2--l2 through the opening 3 in registering relation to the opening so as to engage the base I of the conduit-engaging portion with the front surface l4 of the panel. Then pressure is exerted on the conduit-engaging portion either by hand or by.

Force exerted on the base 1 tending to flatten the same is progressively increased during rotation of the hooks until the hooks are disposed in Furthermore, there preferred embodiment of 2 final position in transverse relation to the aperturel,asshowninl?l .3,atwhichtimethe clip member is secured in flrm engagement with the support. It will be understood that since the base I may plicable to supports of varying thicknesses. may be some flexibility in the hook portions per se, which increases the resilience'of the fastener.

Thus, by my invention I haveprovided a clip member of extremely inexpensive construction yet capable of easy assembly with a supporting panel so as to be secured in firm engagement therewith. At the same time the attaching portions of the clip member project on the rear side of a panel a distance only slightly g eater than the thickness of metal thereof. As a result, my fastener is particularly adapted for use in modiiatten, the clip member is apem automobile construction wherein it is commonly desired to provide backing or insulation in close relation to the rear surface of the frame or support which carries the clipmember,

Although I have illustrated and described a my invention, I do not limited thereby because the scope of wish to be best defined by the following my invention is claims.

I claim:

1. A rotary attachable and detachable fastener device formed from a single piece of spring sheet metal, said fastener having a base and a pair of substantially identical oppositely directed hookshaped portions extending beyond one side of said base for engagement with a supporting panel through an elongated aperture thereof, said hookshaped portions having end portions in spaced underlying relation to said base to engage an opposite side of said panel from said base, said hookshaped portions forming an elongated end whose major length is slightly less than the length of the elongated panel aperture but greater than the width thereof so as to be movable axially freely through said aperture of said panel in one predetermined position only and thereafter rotatable to receive the material at the longer edges of said panel aperture between said base and said free ends thereby to secure said fastener device to said panel.

2. A rotary attachable and detachable device of the class described having a U-shaped clip for receiving and holding a said clip having one arm thereof providing a base tubing, wire and the like,

adaptedtobesecuredinentwithone side of a supporting panel formed with an elonsaid arm having a pair of substantially identical oppositely directed hookshaped portions extending beyond one side thereof for engagement through the aperture thereof, said hook-shaped portions having end portions in spaced underlyingrelationtosaidbasetoensageanopposite side of said panel shaped portions forming an elongated end whose major length is slightly less than the length of the panel aperture but greater than the width thereof so as to be movable axially freely through said elongated aperture of said panel in one we determined position only and thereafter rotatable to receive the material at the longer edges of said panel aperture between said base and said free ends thereby to secure said fastener device to said panel.

3'. A rotary attachable and detachable device of the class described having a U-shapcd clip for through an aperture thereof, said hook-shaped portions having end portions in spaced underlying relation to said base to engage an opposite side of said panel from said base, said hookshaped portions forming an elongated end whose major length is slightly less than the length of the panel aperture but greater than the width thereof so as to be movable axially freely through said aperturelof said panel in one predetermined position only and rotatable to receive the material at the longer edges of said panel aperture between said base and said free ends thereby to secure said fastener device to said panel, said attaching portions opening in opposite directions to receive opposed edges between said end portions and said base, portions of said hook-shaped portions adiacent the free ends thereof being inclined at an angle of said base to draw said base firmly against said panel on rotation of said fastener.

CHARLES L. HALL.

with a mp rting m from said base, said hOOkrelative to the general plane 

